Netgate 6100 ZFS reinstall disk space

cdturri

Hi, I have added a custom 512 GB SSD to my Netgate 6100 and reinstalled pfSense ZFS over it. Everything is working fine and I know there is nothing wrong here but I am just trying to understand how the space is reported by each of the tools. diskinfo reports 477GB in bytes and the pfSense zpool list is 472GB. Where are the missing 5 GB? If I look gpart then freebsd-zfs is 475GB and freebsd-swap is 2 GB which adds up to 477GB on nvd0 but that's different than zpool list (472GB). Thanks!

[22.05-RELEASE][root@pfSense.home.arpa]/root: diskinfo -v nvd0
nvd0
        512             # sectorsize
        512110190592    # mediasize in bytes (477G)
        1000215216      # mediasize in sectors
        0               # stripesize
        0               # stripeoffset
        WDC PC SN520 SDAPNUW-512G-1014  # Disk descr.
        1939B4800202    # Disk ident.
        Yes             # TRIM/UNMAP support
        0               # Rotation rate in RPM

[22.05-RELEASE][root@pfSense.home.arpa]/root: zpool list
NAME      SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP  HEALTH  ALTROOT
pfSense   472G   765M   471G        -         -     0%     0%  1.00x  ONLINE  -
[22.05-RELEASE][root@pfSense.home.arpa]/root: geom label status
                  Name  Status  Components
ufsid/630f6996b58c32c2     N/A  mmcsd0p2
           label/swap0     N/A  mmcsd0p3
          gpt/efiboot0     N/A  nvd0p1
        msdosfs/EFISYS     N/A  nvd0p1
          gpt/gptboot0     N/A  nvd0p2
[22.05-RELEASE][root@pfSense.home.arpa]/root: gpart show
=>        40  1000215136  nvd0  GPT  (477G)
          40      409600     1  efi  (200M)
      409640        1024     2  freebsd-boot  (512K)
      410664         984        - free -  (492K)
      411648     4194304     3  freebsd-swap  (2.0G)
     4605952   995608576     4  freebsd-zfs  (475G)
  1000214528         648        - free -  (324K)

=>      40  30621616  mmcsd0  GPT  (15G)
        40    409600       1  efi  (200M)
    409640  28950527       2  freebsd-ufs  (14G)
  29360167         1          - free -  (512B)
  29360168   1261488       3  freebsd-swap  (616M)

stephenw10

That's the available space in the pool so I would have to say the capacity that appears to be 'lost' is in the filesystem formatting. I've never really looked into that too deeply though.

Steve